Three upcoming London gigs across April and leading into the start of May: all of them batting around ideas in the progressive field, whichever particular road they took into it. In early April – a Chaos Theory post-rock show with three bands offering successive palettes of solitary guitar sketches, sombre filmic post-Godspeed tonescapes, and bright-toned romantic futurism. In mid-April – the debut of a brand new progtronic trio alongside an experimental string duo and a humble keyboard star. On May Day, an international rhythmatic threesome at Rich Mix mixing up post-Squarepusher tech-fusion, bursting guitar instrumentals and twenty-first century dual-keyboard/drumkit jazz-rock barrage.

“This month The Facemelter features a glorious night with some truly brilliant veterans of post-rock, drone and ambient sounds, with new and seasoned projects alike.

“Formed thirteen years ago, Flies are Spies from Hell have climbed up from humble beginnings to international fame. The years have seen them move on from small local gigs, to sharing the stage with behemoths such as Russian Circles, And So I Watch You From Afar, *shels, Latitudes and Vessels, to a couple of European tours, and appearances at ArcTanGent and Dunk!festival. Two years after the release of their second album ‘Underdog Underfoot’, they’ll finally grace the stage at The Facemelter.

“A-Sun Amissa are a powerful (mostly) instrumental collective possessed of “a rusted industrial aesthetic that lurks in the periphery of perception” (‘Rock-A-Rolla’), founded and led by Richard Knox (Shield Patterns, Glissando, The Rustle of the Stars) and Angela Chan (Tomorrow We Sail, Lanterns On The Lake, The Rustle of the Stars) that has featured an array of members and collaborators since its formation in 2011, as well as two albums out on Gizeh Records.

“Producing dense, drone-like atmospheres with evocative, melodic string and woodwind sections, intertwining guitars and field recordings, their live performance is a mixture of recorded output combined with improvisation to explore progressions in the music every time. Their ever-flowing lineup of collaborators have included members of Amenra, Nadja, Gnod, Oiseaux-Tempête and Hundred Year Old Man.

“Only Echoes Remain serve up incredibly cinematic post-rock, without becoming too cliched thanks to generous smatterings of math, ambient and classic prog influences. They have already played with the likes of Her name Is Calla, TOTORRO, VASA, Poly-Math and Waking Aida, and will be releasing their debut LP early this year.”

(This project’s so new that’s there’s no music available to present for it – instead, I’ve had to give you a few ideas via these clips from the member’s other projects, including Andrew’s ten years of undersung work with jamming collective Improvizone:)

“Supporting them will be string duo Mein Haus, consisting of Patricia Stepien (violin) and Elliot Murphy (cello, guitar). Their music is by turns creepy and sparse, then intense and dramatic. But whether it’s complex rhythmic interplay, or crunching cello and soaring violin, you feel the humour is never far away. From gigsite ‘Go Out Of Tune‘ – “based in East London but hailing from Poland and Ireland originally, they’ve been making music together since they met on a train in Deptford over a year ago. Their performances are high in energy and musically unpredictable. Their music has been described as: ‘Shostakovich and Arvo Part being kicked down a flight of stairs in an oil barrel’, with influences ranging from the Sex Pistols through Penderecki, Battles and Kraftwerk.”

“Matt Baber is a co-founding half of the continuing Oxford-based musical journey that is currently Sanguine Hum, having made its way through various earlier incarnations. He has played keyboards throughout, both crafting his unique synth atmospheres plus stamping down complex piano riffs on his Fender Rhodes. Expect more of the latter this time, as he delves into his Jarrett/Emerson-flavoured solo material for his first ever solo keyboard show.”

Note that Gaz Cloud – as half of Cloud & Owl – will also be playing this Askarabaskara techno/house gig five days earlier, demonstrating part of the elements-puzzle which makes up his new band.

“The extraordinary Mouse On The Keys trio are back from Japan, armed with fresh material from their new album ‘Out Of Body’, out last January via Topshelf Records. This is a pristine example of blending minimal-phrased piano and dynamic drumming, while creating a live experience composed of visual and audio elements. Formed in 2006, with elements of jazz, funk, post‐rock and electronic music, Mouse On The Keys fits into a genre of their own.

“The trio consists of two former members of the influential Japanese underground band Nine Days Wonder – Akira Kawasaki and Atsushi Kiyota – who teamed up with Daisuke Niitome (who has played drums as well as composed music for countless jazz‐funk and hip hop bands). Their unique sound, comprising two pianos, two keyboards and drums, continues to stand at the forefront of the Japanese music scene.

“Luxembourg quartet Mutiny On The Bounty bring a torrent of groovy rhythms, guitar acrobatics and joyous melodies our way. These guys have been showcasing their unique brand of math-rock and instrumental music throughout Europe and have played close to five hundred shows supporting bands such as Biffy Clyro, And So I Watch You From Afar, TTNG and Maps & Atlases as well as playing some of the biggest festivals like Roskilde, Primavera and Fusion festival.

“Following on from their album ‘Trials’, released in 2012 and recorded by producer Matt Bayles, Mutiny On The Bounty released their latest album ‘Digital Tropics’ via Small Pond, which encompasses facets of their personalities ranging from rock, to electro, 80’s pop and even hip-hop. A reverb-infused, pop groove-laden feast of staccato guitar melodies, loops and math rock beats.

“Strobes‘ triangle of electrified polyrhythms, spaced-out synth jams and off-kilter beats will open the evening. Featuring guitar and synth-work by Matt Calvert (Three Trapped Tigers), drums by Joshua Backmore (Troyka) and keys by Dan Nicholls (who has collaborated with Squarepusher and Matthew Herbert), the trio flickers effortlessly between the worlds of electro-improv, minimalist polyrhythm and distinctively original hooks.

“Like a twisted love child of Aphex Twin, Brainfeeder and Battles, Strobes have been heard individually with the likes of Squarepusher, Matthew Herbert and Three Trapped Tigers. Built from collective composition, studio production, live sampling and improv jams, the band smashes out exhilarating odd-tempo loops, polyphonic synth soundscapes and big headnodding beats. Their new album ‘Brokespeak’, out via Blood And Biscuits, is a true work of genius.